diff --git a/src/main/java/emissary/util/ClassLookupCache.java b/src/main/java/emissary/util/ClassLookupCache.java
index c4c20d634c..49131b6beb 100644
--- a/src/main/java/emissary/util/ClassLookupCache.java
+++ b/src/main/java/emissary/util/ClassLookupCache.java
@@ -140,6 +140,13 @@ public static Class<?> lookup(final String className) throws ClassNotFoundExcept
         }
     }
 
+    /**
+     * Destroy the ThreadLocal cache object
+     */
+    public static void unload() {
+        cachedLookupResult.remove();
+    }
+
     /** This is a static utility class, so prevent instantiation. */
     private ClassLookupCache() {}
 }
diff --git a/src/main/java/emissary/util/ConstructorLookupCache.java b/src/main/java/emissary/util/ConstructorLookupCache.java
index d411b32c2d..7706831ed2 100644
--- a/src/main/java/emissary/util/ConstructorLookupCache.java
+++ b/src/main/java/emissary/util/ConstructorLookupCache.java
@@ -256,6 +256,13 @@ public static Constructor<?> lookup(final Class<?> clazz, final Class<?>[] argTy
         }
     }
 
+    /**
+     * Destroy the ThreadLocal cache object
+     */
+    public static void unload() {
+        cachedConstructorLookup.remove();
+    }
+
     /** This is a static utility class, so prevent instantiation. */
     private ConstructorLookupCache() {}
 }
diff --git a/src/main/java/emissary/util/io/FileManipulator.java b/src/main/java/emissary/util/io/FileManipulator.java
index f785b21cdf..eff6d56c0a 100755
--- a/src/main/java/emissary/util/io/FileManipulator.java
+++ b/src/main/java/emissary/util/io/FileManipulator.java
@@ -1,7 +1,3 @@
-/*
-  $Id$
- */
-
 package emissary.util.io;
 
 import java.io.File;
@@ -11,8 +7,6 @@
 /**
  * A class of utility methods for manipulating files.
  */
-
-
 public class FileManipulator implements Serializable {
 
     static final long serialVersionUID = 365259266882118692L;
@@ -54,6 +48,13 @@ public static String mkTempFile(final String dirPath) {
         return mkTempFile(dirPath, "temp");
     }
 
+    /**
+     * Destroy the ThreadLocal SecureRandom object
+     */
+    public static void unload() {
+        secureRandomThreadLocal.remove();
+    }
+
     /** This class is not meant to be instantiated. */
     private FileManipulator() {}
 }